对牡丹江地下水污染状况进行了分析，并提出防治保护措施。

This paper analyzes the underground water pollution states in Mudanjiang City, and presents prevention and treatment measures.

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阐述了公路建设的水土流失原因、危害，并对水土流失进行预测，采取相应保护措施预以防治。

The paper explains the causes and harms of water and soil loss in highway construction, makes a prediction about water and soil loss and takes the corresponding measures to prevent it.

youdao

阐述了公路建设的水土流失原因、危害，并对水土流失进行预测，采取相应保护措施预以防治。

The paper explains the causes and harms of water and soil loss in highway construction, makes a prediction about water and soil loss and takes the corresponding measures to prevent it.

youdao